TXC-04216 Datasheet | Transwitch

E1Mx16 Device E1 Mapper 16-Channel TXC-04216 DATA SHEET Features - Add/drop sixteen 2.048 Mbit/s signals from an STM-1 VC-4/AU-3, STS-3, or an STS-1 - Independent add and drop bus timing modes - Selectable HDB3 positive/negative rail or NRZ E1 interface. Performance counter provided for illegal coding violations. - Digital desynchronizers - J2 16-byte ETSI trail trace parison - Drop buses are monitored for parity, loss of clock, upstream AIS and H4 multiframe errors - TU Tandem Connection ETSI message processing and generation - Performance counters are provided for TU/VT pointer movements, BIP-2 errors and Far End Block Errors (REIs) - TU/VTs are monitored for Loss Of Pointer, New Data Flags (NDFs), AIS, Remote Defect Indication (RDI), and size errors (S-bits) - V5 Byte Signal Label Mismatch and Unequipped detection - E1 facility and line loopbacks, generation of BIP-2 and REI errors, and send RDI capability - Intel / Motorola patible microprocessor bus interface with interrupt capability - Programmable internal RISC processor implements VT-POH and VT-alarm handling - Boundary scan capability (IEEE 1149.1) - Single +5V, ±5% power supply - 388-lead plastic ball grid array (35 x 35 mm) package DESCRIPTION The E1 Mapper 16-Channel device is designed for add/drop multiplexer, terminal multiplexer, and dual and single unidirectional ring applications. Four field-proven QE1M Quad E1 Mapper chips are interconnected in a single pact package to permit higher application board densities. Sixteen E1 2.048 Mbit/s signals are mapped to and from asynchronous Tributary Unit-12s (TU-12s) or Virtual Tributary 2s (VT2s). The E1Mx16 interfaces to a multiple-segment, byte-parallel SDH/SONET-formatted Tele Bus at the 19.44 Mbit/s byte rate for STM-1/STS-3 operation or at the...